7 files changed, 5 insertions, 38 deletions
diff --git a/clang/lib/AST/DeclPrinter.cpp b/clang/lib/AST/DeclPrinter.cpp
index 608b0b44072..f5c69944034 100644
--- a/clang/lib/AST/DeclPrinter.cpp
+++ b/clang/lib/AST/DeclPrinter.cpp
@@ -1001,19 +1001,12 @@ void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) {
 
 void DeclPrinter::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
   const char *l;
-  switch (D->getLanguage()) {
-  case LinkageSpecDecl::lang_c:
+  if (D->getLanguage() == LinkageSpecDecl::lang_c)
     l = "C";
-    break;
-  case LinkageSpecDecl::lang_cxx_14:
-    l = "C++14";
-    break;
-  case LinkageSpecDecl::lang_cxx_11:
-    l = "C++11";
-    break;
-  case LinkageSpecDecl::lang_cxx:
+  else {
+    assert(D->getLanguage() == LinkageSpecDecl::lang_cxx &&
+           "unknown language in linkage specification");
     l = "C++";
-    break;
   }
 
   Out << "extern \"" << l << "\" ";
diff --git a/clang/lib/AST/JSONNodeDumper.cpp b/clang/lib/AST/JSONNodeDumper.cpp
index 049ce0d6ff2..b7e8c882244 100644
--- a/clang/lib/AST/JSONNodeDumper.cpp
+++ b/clang/lib/AST/JSONNodeDumper.cpp
@@ -850,12 +850,6 @@ void JSONNodeDumper::VisitLinkageSpecDecl(const LinkageSpecDecl *LSD) {
   switch (LSD->getLanguage()) {
   case LinkageSpecDecl::lang_c: Lang = "C"; break;
   case LinkageSpecDecl::lang_cxx: Lang = "C++"; break;
-  case LinkageSpecDecl::lang_cxx_11:
-    Lang = "C++11";
-    break;
-  case LinkageSpecDecl::lang_cxx_14:
-    Lang = "C++14";
-    break;
   }
   JOS.attribute("language", Lang);
   attributeOnlyIfTrue("hasBraces", LSD->hasBraces());
diff --git a/clang/lib/AST/TextNodeDumper.cpp b/clang/lib/AST/TextNodeDumper.cpp
index d1915fdad2e..546a62cda28 100644
--- a/clang/lib/AST/TextNodeDumper.cpp
+++ b/clang/lib/AST/TextNodeDumper.cpp
@@ -1766,12 +1766,6 @@ void TextNodeDumper::VisitLinkageSpecDecl(const LinkageSpecDecl *D) {
   case LinkageSpecDecl::lang_cxx:
     OS << " C++";
     break;
-  case LinkageSpecDecl::lang_cxx_11:
-    OS << " C++11";
-    break;
-  case LinkageSpecDecl::lang_cxx_14:
-    OS << " C++14";
-    break;
   }
 }
 
diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 220ffb8d3ef..e656fe6b8b9 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -561,10 +561,6 @@ void CGDebugInfo::CreateCompileUnit() {
   if (LO.CPlusPlus) {
     if (LO.ObjC)
       LangTag = llvm::dwarf::DW_LANG_ObjC_plus_plus;
-    else if (LO.CPlusPlus14)
-      LangTag = llvm::dwarf::DW_LANG_C_plus_plus_14;
-    else if (LO.CPlusPlus11)
-      LangTag = llvm::dwarf::DW_LANG_C_plus_plus_11;
     else
       LangTag = llvm::dwarf::DW_LANG_C_plus_plus;
   } else if (LO.ObjC) {
@@ -882,8 +878,6 @@ llvm::DIType *CGDebugInfo::CreateType(const PointerType *Ty,
 static bool hasCXXMangling(const TagDecl *TD, llvm::DICompileUnit *TheCU) {
   switch (TheCU->getSourceLanguage()) {
   case llvm::dwarf::DW_LANG_C_plus_plus:
-  case llvm::dwarf::DW_LANG_C_plus_plus_11:
-  case llvm::dwarf::DW_LANG_C_plus_plus_14:
     return true;
   case llvm::dwarf::DW_LANG_ObjC_plus_plus:
     return isa<CXXRecordDecl>(TD) || isa<EnumDecl>(TD);
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 486832bca5f..be7dfc97a98 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -5132,9 +5132,7 @@ void CodeGenModule::EmitObjCIvarInitializations(ObjCImplementationDecl *D) {
 // EmitLinkageSpec - Emit all declarations in a linkage spec.
 void CodeGenModule::EmitLinkageSpec(const LinkageSpecDecl *LSD) {
   if (LSD->getLanguage() != LinkageSpecDecl::lang_c &&
-      LSD->getLanguage() != LinkageSpecDecl::lang_cxx &&
-      LSD->getLanguage() != LinkageSpecDecl::lang_cxx_11 &&
-      LSD->getLanguage() != LinkageSpecDecl::lang_cxx_14) {
+      LSD->getLanguage() != LinkageSpecDecl::lang_cxx) {
     ErrorUnsupported(LSD, "linkage spec");
     return;
   }
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index bf957797e92..ff2cc7f36f2 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -13982,10 +13982,6 @@ Decl *Sema::ActOnStartLinkageSpecification(Scope *S, SourceLocation ExternLoc,
     Language = LinkageSpecDecl::lang_c;
   else if (Lang == "C++")
     Language = LinkageSpecDecl::lang_cxx;
-  else if (Lang == "C++11")
-    Language = LinkageSpecDecl::lang_cxx_11;
-  else if (Lang == "C++14")
-    Language = LinkageSpecDecl::lang_cxx_14;
   else {
     Diag(LangStr->getExprLoc(), diag::err_language_linkage_spec_unknown)
       << LangStr->getSourceRange();
diff --git a/clang/lib/Sema/SemaModule.cpp b/clang/lib/Sema/SemaModule.cpp
index 1fca351bfb0..10de0ca9122 100644
--- a/clang/lib/Sema/SemaModule.cpp
+++ b/clang/lib/Sema/SemaModule.cpp
@@ -31,8 +31,6 @@ static void checkModuleImportContext(Sema &S, Module *M,
         ExternCLoc = LSD->getBeginLoc();
       break;
     case LinkageSpecDecl::lang_cxx:
-    case LinkageSpecDecl::lang_cxx_11:
-    case LinkageSpecDecl::lang_cxx_14:
       break;
     }
     DC = LSD->getParent();